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Eaton GMC-5-R Medium Time-Delay Glass Fuse 5 A 125 Vac
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pEaton GMC-5-R — 5 A, 125 V, time-delay glass cartridge fuse, 10,000 A at 125 Vac interrupting./p
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Eaton GMC-5-R Medium Time-Delay Glass Fuse 5 A 125 Vac
The GMC-5-R from Eaton carries 5 A, rated 125 Vac, uses a time-delay element, in a glass body.
Technical Data
| Parameter | Rating |
|---|---|
| Part number | GMC-5-R |
| Breaking capacity | 35 A at 250 Vac up to 3 A, 100 A above |
| Maximum voltage drop | 120 mV |
| Typical DC cold resistance | 0.014 Ω |
| End caps | nickel-plated brass |
| AC interrupting rating | 10,000 A at 125 Vac |
| Element | single element |
| Typical melting I2t | 58 A²s |
| Body | Glass tube, 5 x 20 mm |
| Rated current | 5 A |
| Voltage rating | 125 Vac |
| Design standard | UL/CSA 248-14 |
Practical Notes
- Interrupting capability is 10,000 A at 125 Vac — confirm the circuit's prospective fault current stays below this.
- Time-delay element rides through motor starting and capacitive inrush without nuisance opening.
- Startup surges of several times rated current are tolerated for a short window.
- Glass body lets you inspect the element after a fault.
- Best kept for lower fault-current circuits where visual diagnosis matters.
- Working voltage must stay at or below 125 Vac; a lower-rated part is not a safe substitute.
- Do not upsize beyond 5 A to stop nuisance trips — fix the cause instead.
Application Scenarios
Common installation contexts include:
- EV
- adapter
- surge
Questions and Answers
What are the ratings of the GMC-5-R?
5 A continuous at 125 Vac, interrupting rating 10,000 A at 125 Vac.
Is the GMC-5-R fast-acting or time-delay?
It is time-delay. It tolerates short inrush surges.
Can the GMC-5-R be used on a higher fault-current circuit?
No — its interrupting rating is 10,000 A at 125 Vac. Choose a part whose breaking capacity exceeds the prospective fault current.
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